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(N0 ModeL) G. B. DOLGE.

MANUFACTURE OF HAIR mom) WOOL FELT. No. 314,810.

Patented Mar. 31,1885.

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UNITED STATES PATENT OFFICE.

CARL BRUNO DOLGE, OF DOLGEVILLE, ASSIGNOR TO ALFRED DOLGE, OF

' NEW YORK, N. Y.

MANUFACTURE OF HAlR-FACED WOOL FELT.

SPECIFICATION forming part of Letters Patent No. 314,810, dated March31, 1885.

Application filed December 11, 1884.

T0 aZZ'whOm it may concern:

Be it known that I, CARL BRUNO DOLGE, a citizen of the United States,residing atDolgeville, in the county of Herkimer and State of New York,have invented new and useful Improvements in the Manufacture ofHair-Faced Wool Felt, of which the following is a specification.

This invention relates to felt made of wool and faced on both sides withhair.

In the accompanying drawings, Figure 1 represents a side elevation of acarding-machine. Fig. 2 is a plan view of the feed-table of saidcarding-machine on a larger scale than the previous figure. Fig. 3 is atransverse section of a pile of webs formed for producing hairfaced feltwith a rectangular cross-section. Fig. 4 is a transverse section of apile of webs for producing hair-faced felt with a taperingcross-section. Fig. 5 is a transverse section of the tapering felt whencomplete.

Similar letters indicate corresponding parts.

In order to produce hair-faced felt of a rectangular cross-section Iproceed as follows: I spread on thefeed-table A of the carding-machine aquantity of hair, distributing the same evenly over the entire width ofthe table, (or to a width corresponding to the width of the fabric to beproduced,) and after this first layer, a, of hair has passed through thecarding-machine it is taken from said carding-machine by an endlessapr0n,which moves with avelocity equal to the speed at which thematerial to be felted passes through the card, and which conveys thecarded material-the so called webto another apron that runs directbetween the rollers of a felting-machine. Before all the material of theweb a is worked up by the cardingmachine and conveyed to said endlessapron alayer of wool, a, of the same width as the first layer, is thenevenly spread on the feed-table of the carding-machine, and is in thesame manner .worked and conveyed to the endless aprons,which likewisecarry this wool web a to the felting-machine, the rollers of which arecontinually in operation, thus felting the wool web a directly onto thehair web a. When the wool web a has fully covered the hair web a, aseries of layers of wool are (No model.)

spread in like manner consecutively on the said feed-table and workedand conveyed to the felting-machine, as above described, and thisoperation I continue, adding wool webs a a to a, and finally anotherhair web, a, in accordance with the required thickness of the fabric.

In order to produce hair-faced wool felt with a tapering cross-section Ifirst produce in like manner as above ahair web, a, Fig. 4., equal inwidth to the width of the fabric to be produced. Then I produce a woolenweb, a, ofequal width and length, and felt the same together with thehair web a. web, a fipa-rtly of hair, h, and partly of wool, to, (whichcan be effected by placing upon the feed-table A, near one side, anarrow strip of hair and filling up the rest with wool,) and felt thiscompound web together-with the webs previously felted. Then I produce;another compound web, a, (composed of hair, h, and wool, 10,) of lesswidth than the previous webs, and felt the same together with the webspreviously felted, until I arrive at the web a, which is the narrowest,and which is made entirely of hair. By felting together all the websabove named a felt is produced which is tapering in cross-section andfaced with hair on both sides, Fig. 5." The same result may be obtainedby first producing the narrowest web and have the others increase inwidth-tl1e reverse way as described above.

By facing wool felt with hair a fabric is obtained which is of greatadvantage for many purposes-such, for instance, as for the hammers ofpiano-fortes, where it is desirable to combine the elasticity of thewool felt with the hardness and toughness of the hair felt.

I am aware that a compound fabric of felt, cloth, and hair hasheretofore been made by taking a piece of burlap and, through the mediumof afelting n'iaohine, throwing thereupon a stratum or sheet of felt,the two being united by felting, a stratum or series of strata of hairbeing subsequently affixed to the fabric, as in Patent No. 49.353. Suchthereforeldisclaim.

My invention differs fronithe prior fabricin that I first card a layerof hair and then card on the hair fabric a layer or layers of wool,

Then I produce a compound.

and then felt the wool and hair layers together, a final covering ofhair being added in the same manner.

What I claim as new, and desire to secure by 5 Letters Patent, is

l. The method herein described of making hair-faced wool felt, whichconsists in first carding a layer of hair, then carding a layer orlayers of wool, and then felting the wool and I0 hair layers together,substantially as described.

2. The method herein described of making hair-faced wool felt, whichconsists in first carding a layer of hair, then carding alayer or layersof wool, adding a final layer of hair, and

I 5 felting the layers together to form wool felt faced on oppositesides with hair, substantially as described.

3. As a new article of manufacture,wool felt faced with hair, as shownand described.

4:. As a new article of manufacture,wool felt 20 having a taperingeross-section and faced on both sides with hair, as described.

In testimony whereof Ihave hereunto set my hand and seal in the presenceof two subscribing witnesses.

CARL BRUNO DOLGE.

Witnesses:

J OSEPH K0011, I E. R. WANOKEL.

